6. Four mark example problems II

A gardener walks around a circular park of distance \(154 \ m\). If he wants to level the park at the rate of \(₹25\) per \(sq. \ m\), how much amount will he need? (Use \(\pi = \frac{22}{7}\)).

 

Answer:

 

Area of the park \(=\)  \(m^2\)

 

Cost of levelling the park \(= ₹\)